To get the most out of this book

The code in this book needs to be run on Python 3.10 or higher. Python’s interactive environment can also be used to run the code snippets. It is advised to learn the algorithms and concepts by executing the code provided in the book to better understand the algorithms. The book is aimed to give practical exposure to the readers, so it is recommended to do the programming for all the algorithms to get maximum out of this book.

Download the example code files

The code bundle for the book is hosted on GitHub at https://github.com/PacktPublishing/Hands-On-Data-Structures-and-Algorithms-with-Python-Third-Edition. In case there’s an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Download the color images

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: https://static.packt-cdn.com/downloads/9781801073448_ColorImages.pdf.

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “The ‘not in' operator returns True if it does not find a variable in the specified sequence and False if it is found.”

A block of code is set as follows:

p = "Hello India"
q = 10
r = 10.2
print(type(p))
print(type(q))
print(type(r))

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

while self.slots[h] != None:
    if self.slots[h].key == key:
        return self.slots[h].value
    h = (h + j * (self.prime_num - (self.h2(key) % self.prime_num))) % self.size
    j = j + 1
return None

Any command-line input or output is written as follows:

sudo apt-get install python3.10

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: “Each position in the hash table is often called a slot or bucket that can store an element.”